Homemade compost is invaluable in the garden – it’s a great soil improver, mulch and growing medium, and we have some great new compost bins in stock to get you started!To make good compost, you ideally need a 50:50 mix of materials that are rich in nitrogen and carbon. Nitrogen comes from lush, green material such as grass clippings. Carbon comes from brown material, such as woody stems and cardboard.